Rich Presence allows you to leverage the totally overhauled "Now Playing" section in a Discord user's profile to help people play your game together. Rich game data—including duration, score, current boss or map, and so much more—lives inside Discord. You can spectate a friend's game directly from their profile popout, or party up via beautiful chat embeds with real-time information about open party slots and the party's in-game status.

Why we need one?
I don't think it should be on the "priority list" atm, but yeah, having discord rich presence integrated to IVMP T4 will somewhat promote this client all over discord since it will be displayed as "now playing" on every player's profile as well as some detailed information to show off about the client. Theres another client that uses discord rich presence so why not IVMP

How to implement this?
TBH, my knowledge about programming is as good as nil, so click here to know how to implement it and click here to know more about it.